Jefferson Airplane's 1967 single White Rabbit, one of the most perfect little psychedelic pop/rock nuggets ever recorded, advertising the slightly peculiar new Citroen C4 Cactus, half chunky mini-SUV, half lavishly upholstered leather sofa.
I'm never sure quite how much my great love for Jefferson Airplane is influenced by my great love (of a slightly different kind) for the fabulously sexy Grace Slick, just as I'm never sure how much my great love for Grace Slick is influenced by her being thrown into sharp relief by her bandmates, a really exceptionally ugly bunch even by 1960s hippy standards. That didn't stop her from sleeping with just about all of them, though, bless her. Here's White Rabbit as performed at Woodstock in 1969.
Secondly, I'd have put a modest sum of money on the backing to the new HSBC "Pink Ladies" advert being by Sigur Rós. I certainly wouldn't have staked any money on being able to identify the song, as with a very few exceptions they all merge into one - no recognisable words to memorise being half the problem. Even being as cagey as that I still would have lost that money, though, since it turns out that the song is called Grow Till Tall by Jónsi, aka Jón Þór Birgisson, the singer with Sigur Rós, from his 2010 solo album Go. So I claim half a point.